There is no direct bus from Zhangjiajie to Dehang. You should first take bus or train from Zhangjiajie to Jishou, then take bus from Jishou to Dehang.

Thank you!!I will be travelling from Zhangjiajie to Fenghuang by direct bus then spenbd the night in Fenghuang.The next day I will travel to Dehang via Jishou,spend the night in Dehang.Then the following day I take the bus from Dehang to Jishou and then to Kaili.Do you think it is ok?Thanks!